people1={'first_name':'mao1','last_name':'zihao1'}
people2={'first_name':'mao2','last_name':'zihao2'}
people3={'first_name':'mao3','last_name':'zihao3'}
people=[people1,people2,people3]
print(people)
dog={'name':'zhang','age':'18'}
cat={'name':'zhu','age':'18'}
mouse={'name':'wan','age':'18'}
bird={'name':'zhang','age':'18'}
pets=[dog,cat,mouse,bird]
for t in pets:
    print(t)
data = {"a": 1, "b": 2, "c": 3, "d": 4, "e": 5}
for a,b in data.items():
    print(a+'最喜欢的数字:')
    for t in a:
        print(t)
cities={'taian':{'country':'china','population':'1000','fact':'挺好'},
        'jining':{'country':'china','population':'100','fact':'挺好的'},
        'jinan':{'country':'china','population':'10','fact':'挺差'}}
for a,b in cities.items():
    print('城市:'+a+'的信息')
    for t,p in b.items():
        print(t,p)